Answer:
A and D
Step-by-step explanation:
A is right because if you multiply 5 and m you get 5m then multiply 5 and 3 and you get 15 then you add them together as said in A and D is right because you have m+3+m+3+m+3+m+3+m+3 which is the same as M times 5 and 3 times 5.
